201225007987979 has 2 divisors, whose sum is σ = 201225007987980. Its totient is φ = 201225007987978.

The previous prime is 201225007987961. The next prime is 201225007987981. The reversal of 201225007987979 is 979789700522102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201225007987979 - 2⁴⁰ = 200125496360203 is a prime.

Together with 201225007987981, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (201225007981979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100612503993989 + 100612503993990.

It is an arithmetic number, because the mean of its divisors is an integer number (100612503993990).

Almost surely, 2^{201225007987979} is an apocalyptic number.

201225007987979 is a deficient number, since it is larger than the sum of its proper divisors (1).

201225007987979 is an equidigital number, since it uses as much as digits as its factorization.

201225007987979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80015040, while the sum is 68.

The spelling of 201225007987979 in words is "two hundred one trillion, two hundred twenty-five billion, seven million, nine hundred eighty-seven thousand, nine hundred seventy-nine".